Mehrdad Bahar's most notable work is his translation of the most famous Middle Persian text, Bondahesh(n). His other prominent work, A Research on Persian Mythology (two volumes) consists of a collection/compilation of different ZoroastrianMiddle Persian texts and a systematic analysis of their roots. The second volume, however, was incomplete when Bahar died in 1994. His closest colleague, Katayoun Mazdapour, completed the editing task the following year.